These ruffled lace bottom panties are actually vintage late 60s or early 70s tennis underwear. I have two pair and this is the Grass green lace pair. These are an opaque slightly heavier nylon with elastic waist and legs and a single layer gusset. You can call these rhumba panties, or knickers and they will still be cute under your square dance outfit, vintage tennis attire, burlesque costume or what have you.

I have soaked, hand laundered and hung these to dry so they are clean and ready to wear. They are in very good shape with nice stretchy elastic, a few scattered picks on the back. The gusset on this pair is ever so faintly discolored, not horribly, but I have shown it in a close-up photo so you can be the judge. I would call these good condition to very good condition overall. Please remember, these are not new and have been previously worn.